Author: Uri Blass
Date: 07:42:36 01/08/01
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On January 08, 2001 at 10:34:38, Uri Blass wrote: >On January 08, 2001 at 10:09:34, Vincent Diepeveen wrote: > >>On January 08, 2001 at 10:02:44, Uri Blass wrote: >> >>>On January 08, 2001 at 08:12:25, Vincent Diepeveen wrote: >>> >>>>On January 07, 2001 at 20:57:46, Ricardo Gibert wrote: >>>> >>>>>One well known rule of thumb is: It is often a bad idea to grab more material >>>>>when already ahead in material. >>>>> >>>>>For instance, when I play, I generally avoid increasing my material advantage >>>>>unless it does not cost me anything (time, structure, open lines for opponent, >>>>>etc.) to do so or I have nothing else to do that is constructive. >>>>> >>>>>In fact, a reasonable rule of thumb for open positions might be: The 1st pawn >>>>>grabbed is worth 3 tempi, but the 2nd pawn is only worth 1 tempo. Something I >>>>>observed while I studied some of Morphy's games. >>>>> >>>>>My question is: Do any programs take this into account or do they all consider >>>>>the 2nd pawn they grab to be as valuable as the 1st? >>>> >>>>why do you assume all programs are preprocessors? >>> >>>I did not read this assumption. >>> >>>Uri >> >>He says: "if you make a move capturing a second pawn" >> >>So his way of seeing a positions evaluation is move based. > >I think that he meant that if you increase your material advantage from 1 pawn >to 2 pawns and it is not move based. > >Uri I mean that he meant to say that the positional advantage should not be added linearly. It means that if you see that white has 1/2 pawns positional advantage for reason A and 1/2 pawns positional advantage for reason B the total advantage is more than 1 pawn. Uri
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